Valve



D. M. McLAUGHLlN.

VALVE.

APPLICATION FILED MAY 16. 1918.

1,359,187. Patented Nov. 16,1920;

2 SHEETS-SHEET I.

pmu e/ kl. Zul 41/74 1 By A TTORA/E Y D. M. McLAUGHLlN.

VALVE.

APPLICATION FILED MAY 16, 1918.

1,359; 187, Patented Nov. 16, 1920.

2 SHEETS-SHEET 2.

ATTORN PATENT OFFICE.

DANIEL M. McLAUGrI-ILIN, OF LOUISVILLE, KENTUCKY.

VALVE.

' Specification of Letters Patent. Patented Nov. 16, 1920.

Application filed May 16, 1918. Serial No. 235 955.

To all whom it may concern:

Be it known that I, DANIEL M. MCLAUGH- LIN, a citizen of theUnited States, residing at Louisville, in the county of Jefferson and State of Kentucky, have invented certain new Improvements in Valves; and I hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to a valve and has for its object to provide an economical form of valve adaptable for various kinds of service and comprising few parts which are both simple in construction and-in operation. 7

A further object.- of the invention is to provide a valve practically noiseless in operation which is particularly adapted for use in connection with the flushing of closet bowls and one which is applicable to service pipes of different sizes.

Still another object of the invention is to provide an automatic valve with means for effecting the gradual return of the valve to its seat when opened.

To these and other ends the invention consists in certain improvements and com binations of parts, all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end of thespecification. 1 r

In the drawings:' v

Figure 1 is a side elevation of a valve embodying one form of the invention;

Fig. 2 is a sectional elevation through thevalve showing the parts in normal position, and

Fig. 3 is a transverse sectional view taken on line 2 of Fig. 2.

Similar reference numerals in the several figures indicate the same parts.

In carrving out my present invention I have provided a liquid controlling valve applicable for various branches of service in connection with the handling of liquids,

but one which is especially adapted for use in connection withwater closets where it is desired to economize in space andprovide a valve which may be conveniently located and operated for flushinga closet bowl (not shown). W

A valve of the type which I have provided is adapted to be opened and closed by the liquid inthe' service pipes which normally holds the valve seated and which is conveyed to one side thereof by means of a bypass controlled by a small manually operated valve.

Referring now to the drawings, 10 representsa valve casing provided preferably with the upper and lower threaded inlet and outlet portions 11 and 12 by which said casmg is connected with the service'pipe and bowl or similar vessel (not shown) through which the liquid'is to be, discharged. The casing is provided with the upper and lower screw caps 13 and 14 respectively, which serve as stops or limiting members for the valve and the actuating means therefor. ;The valve proper, which is indicated at 15 and which is movable in the chamber 16, is normally held upon its seat 17 by the pressure of the liquid in said chamber which is at all times in communication with the service or supply pipe 18, as shown in Fig. 3. The valve 15 is provided with acentrally disposedv recess 19 into which loosely projects the reduced portion 20 of the piston stem 21 which is preferably integral with the head'22 of the piston, to which is connected the flexible packing 23, held upon the head by means of the nut or clamping member 24; screwed into the recess 25 of said head, which normally remains in its lowermost position within the cylindrical casing 10, as shown in Fig. 2. The stem of the piston is provided with a centrally disposed bore 26 extending therethrough and communicating with the recess 19 of they valve 15 and at its lower end with the recess held in the desired adjusted position by bore 26 is I means of'the locking nut 29 which. serves as a stop to limit the downward movement of the piston by engaging the clamping nutf 24: through which loosely extends'the tapered pin, as shown in Fig. 2. The stem ofthe piston is provided with afshoulder or abutment 30 which when moved up engages the -,flange 31 connected with the valve proper by 'thereduced portion 32. having the laterally extending ribs 33 serving to guide the valve in its up and down movement. 1 I

When theyalve 15 is unseated, liqnid will i sothat it will enter the bowl (not shown) with the least possible force, thereby reducingto a minimumthe noise created by the liquid when discharged. 2 i

The valve when raised is limited in its upward movement by the-extension 32 which engages the boss 33 of the screw cap 13. V

At one side of the valve casing is a laterally disposed projection or member 34 upon which is mounted a stuiiing box 35 carrying the gland 36 for retaining the packing 37 through which projects the reciprocally mounted rod 38 having on its upper end the, button 39 engaging the spring 40 within said gland, the rod carrying at its lower end a valve 41 normally held in engagement with its seat 42 by means of said spring,- as shown in Fig. '2;

By pressing down upon the button 39, the valve41-is moved from its seat into a pocket or recess 43 which communicates with the shown in Fig. 8. 30

supply pipe 18 through the by-pass '44, as hen the valve "41 is open the pocket 43 and bypass 44' are placed in communication with the transverse opening 45 through the bottom of the stuffing box, said opening leading tothe vertically disposed passageway 46 which extends to the bottom of the-casing 10 and communicatcs with the same through the port '47 in the wall of the casing at a point to deliver In doing so, however, said valve will be gradually returned to its normal position' by reason of the cushioning'eitect produced by the liquid which accumulates in the recess 19 and enters and escapes through the bore 26 01 the piston stem around the tapering pinf27 into "the recess 25 and thence' through the central opening of the "packing nut24 which isonly'slightly larger in di-' ameter than the greatest diameter of the pin. When thepiston is in its highest position-avery small amount of the upper ex- 66 tremity'of the pin willproject into the bore 26 and at this time, of course, the size of the liquidoutlet around the pin is 'at its maximum,-and it is the gradual decrease.

in the size of this opening as the piston moves down that more and more restricts the escape of the liquid which retards the downward movement of the valve and permits it to be seated gradually and without producing the hammering or clicking sounds common to valves of this kind.

The pin 27 is adjustable, as shown in Fig. 2, for the purpose of increasing or decreasing, as desired, the size of the liquid outlet opening through the piston stem and packing nut and is held in adjusted position by the lock nut 29, as previously stated.

In order to protect the valve 15 against undue action of the liquid entering the chamber 16 from the supply pipe 18 and tending to unseat said valve by striking the same on one side thereof, I provide the vertically disposed bafiie plate 48' in the liquid inlet portion 11 of the valve casing, said baflie plate extending across the entrance to the valve" chamber immediately intherear of the entrance to the by-pass'44, thus per mitting an unobstructed flow of water through the latter to lift the piston When the hand controlled valve 41'is open.

I claim as ray-invention: v

1. A device of the class described comprisinga valve casing havinginletl'and out let openin s, a valve seatedin said casing normally oosing said outlet opening, a piston'in the casing, a hollow stem upon 'the piston, a pin fixed upon the casing and'projecting loosely into said steni and substant ally closing the opening therein, an abutment upon the 'stem 'adap'ted after the piston has been moveda'piedetermined distance to engage and unseat said valve, an

extension 1 upon the casing having a passage-way leading from said inlet opening to one side of said piston, and a manually controlledyalve normally closing said sagewaywhich-when opened will permit the I flow of liquid therethrough to actuate saicv piston.

2 A prising a valve casing having inlet and out letopenin'gs, a valve seated in said casing normally closing the outlet opening and having a recess formed therein, a piston in the casing, a hollow stem upon the piston loosely projecting into said recess and substantially closingthe -sanie, a pin projecting into and substantially closing said stem, an abutment upon the stem spaced from the valve and adapted to engage and unseat the same after the piston has moved a predetermined distance, an extension upon the casing having a passage-way leading from saidinletopeninig to one side of said piston and a manually controlled valve normally closi'ng'said p'assage waywhich when'opened will'permit the flow of liquid therethrough device of theclass described coin-1 to move said piston and cause the abutment on stem to' engage and unseat the first mentioned valve.

3; A device of the class described com prising a valve casing having inlet and outlet'openings, a valve seated 1n sald casing normally closing said outlet'opening,'a piston in the casing, a hollow stem upon the piston having a portion normally spaced trom'the valve and arranged when the piston is moved a predetermined distance'to engage and unseat the valve, a tapered pin adjustable in the hollow stem' and substantially closing the opening therein, an extension upon the casing having. a passageway leading fromsaid inlet opening to one side of said piston, and a valve normally closing said passage-way which when opened will permit liquid to flow therethrough to actuate said piston.

4. A device of the class described comprising a valve casing having inlet and outlet openings a valve seated in said casing normally closing said outlet opening, a piston in the casing having an upstanding member thereon, said piston and upstanding member being -provided with a restricted opening therethrough in communication with the outlet opening of the valve casing, said upstanding member being adapted when moved a predetermined distance to engage and unseat the valve, an extension upon the casing having a passage-way lead ing from said inlet opening to one side of said piston and communicating with said restricted opening, and V amanually controlled valve normally closing said passageway, which when opened will permit liquid to be discharged therethrough to move said piston and said upstanding member into engagement with the valve to unseat. the same.

5. A device of theclass described comprising a valve casing having inlet and outlet openings, a valve s'eated in said casing normally closing said outlet opening and having a pocket therein, a depending ex-' tension upon the valve provided with a flange adapted to deflect the liquid discharged into the outlet opening when the valve is unseated, a piston in the casing, a member thereon extending into and sub stantially closing the pocket and servingto unseat said valve when said piston is moved a predetermined amount in the direction of the valve, an extension upon the casing having a passage-way leading from said inlet opening to the lower side of said piston, and a manually controlled valve normally closing said passage-way.

6. A device of the class described comprising a valve c asing havin inlet and outlet openings, a valve seated in said'casing normally closing said outlet opening and provided with a recess therein, a piston in said casing beneath said valve, a hollow stem upon the piston projecting into said recess, a tapered pin adjustable upon said casing and projecting through said piston and into said hollowstem, an abutment upon the stem adapted to engage and lift said valve after the piston has moved a predetermined distance, an extension upon the casing having a passage-Way leading :troni'the inlet opening tothe bottom of the piston, and a manually closed valve normally closing said passage-way.

7. rideviceot the class described comprising a valve easing having inlet and outlet openings and'removable closures at its opposite ends, a partition within the casing 'tormlng a valve seat intermediate the inlet and outlet openings, at recessed piston has been moved a predetermined distance, the opening in said stem and the recess in said valve forming a'pocket having a restricted outlet for the fluid, thereby providing a cushion for the valve when returning to closed position, a by-pass leading from the inlet chamber to a pointbeneath the piston and a manually actuated valve for controlling saidby-pass.

8.1%. device 01: the class described comprising a valve casing provided intermediate its ends with a valve seat and with inlet and outlet openings above and below said seat, said ends being sealed with up per and lower closures, a valve upon said seat having a longitudinal recess therein closed its upper end and an extension projecting in proximity to said upper closure which serves to limit the upward movement of the valve, a piston beneath said valve having a hollow stem projecting loosely into the recess within the valve, said stem having an abutment adapted to engage andraise the valve after the piston has been -moved a predetermined distance, a tapered pin fixed upon the lower closure and extending through the piston and into said hollow stem, a passage-way leading through the wall of the casing to a point between said piston and said lower closure a cushioning chamber, a liquid inlet passage-way adapted to communicate with the piston and said cushioning chamber and means for opening and closing said passage-way. f

10. In adevice of the class described, the combination of i a valve casing provided With inlet and outlet compartments, a valve normally cutting oil communication between said compartments, a piston movable piston and said liquid holding chamber and means for controlling said passage-way.

- 11. In a device of the class described, the

combination of a valve casing provided with inlet and outlet compartments, a valve;

normally cutting on communication "be tween said compartments, a piston movable relatlvely to the valve and having a member cooperating with-the valve to form a liquid holding chamber provided With-a restricted outlet, said chamber being valiable in size by relative movement between the piston and valve, a, liquid inlet passageway leading to the piston and to said chamber, said piston when moved a predeten mined distance being adapted to effect movement of sald valve and means controL ling said passage-way. I

DANEEL M. MQLAUGHLIN'I 

